Hi, over the past two years I've gotten these intense, horrible upper stomach pains. It's only happened three times in the past two years, and each time I've been in school. It typically happens right before lunch and it's literally the worst pain I've ever experienced. The pain wraps around my upper back,and is so severe that I start shaking and crying and cannot even stand up. The first time it happened I went to a med emerge, but by the time I got there the pain was gone. the doctor simply felt my stomach and said I was fine. This has been on my mind a lot lately, and has been making me very anxious as j am fearing that it could be cancer or something else bad. Anybody have any idea what this is?